Naslov
Discriminative ability of the Yo-Yo intermittent recovery test (level 1) in prospective young soccer players

Autori
Marković, Goran ; Mikulić, Pavle

Izvornik
Journal of strength and conditioning research (1064-8011) 25 (2011), 10; 2931-2934

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Test ; Exercise ; Physical endurance ; Growth and development ; Sports Performance ; Field testing ; Intermittent exercise

Sažetak
We evaluated the sensitivity of the Yo-Yo intermittent recovery test-level 1 (Yo-Yo IR1) when discriminating among players in varying playing positions and different age categories in youth soccer. One-hundred and six prospective young soccer players, grouped on the basis of chronological age (under-13, under-14, under-15, under-16, under-17, under- 18, and under-19) and playing position (centre- backs, fullbacks, centre midfielders, wide midfielders, and forwards), participated in the study. The players were administered a single Yo-Yo IR1 test at the beginning of the spring season. ANOVA revealed significant (F=25.3 ; p<0.001) group differences in Yo-Yo IR1 test performance scores among the observed age categories, and a systematic age-related increase in the Yo-Yo IR1 test performance was evident. Subsequent post-hoc comparisons identified a number of significant differences among the selected age categories in Yo-Yo IR1 test performance. ANCOVA identified significant differences among playing positions (F =3.1 ; p<0.019) in Yo-Yo IR1 test performance after controlling for age (F=135.1 ; p<0.001). Subsequent pairwise comparisons of the adjusted Yo-Yo IR1 test performance identified that centre-backs had achieved significantly lower (all p<0.01) performance scores than centre midfielders, wide midfielders, and forwards, but not fullbacks. These results could be of practical value to coaches and scientists for further development of talent selection and profiling procedures in soccer, particularly since (a) the endurance performance represents a very important fitness component in selection and profiling of young soccer players, and (b) the Yo-Yo IR1 test proved to be valid, reliable and easily available measurement tool of a player’s soccer-specific endurance capacity.

Izvorni jezik
Engleski

Znanstvena područja
Kineziologija

POVEZANOST RADA